8212442129 has 8 divisors (see below), whose sum is σ = 8332987392. Its totient is φ = 8092032480.

The previous prime is 8212442113. The next prime is 8212442149. The reversal of 8212442129 is 9212442128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8212442129 - 2⁴ = 8212442113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8212442149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91472 + ... + 157454.

It is an arithmetic number, because the mean of its divisors is an integer number (1041623424).

Almost surely, 2^8212442129 is an apocalyptic number.

It is an amenable number.

8212442129 is a deficient number, since it is larger than the sum of its proper divisors (120545263).

8212442129 is a wasteful number, since it uses less digits than its factorization.

8212442129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67807.

The product of its digits is 18432, while the sum is 35.

The square root of 8212442129 is about 90622.5255055276. The cubic root of 8212442129 is about 2017.5490753448.

Subtracting 8212442129 from its reverse (9212442128), we obtain a palindrome (999999999).

The spelling of 8212442129 in words is "eight billion, two hundred twelve million, four hundred forty-two thousand, one hundred twenty-nine".